SAXSdb — 1iye

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	1iye
沉积日期 deposition_date	2002-08-07
结构标题 title	CRYSTAL STRUCTURE OF ESCHELICHIA COLI BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE
关键词 keywords	AMINOTRANSFERASE, HEXAMER, PLP, TRANSFERASE; TRANSFERASE
实验方法 method	X-RAY DIFFRACTION

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2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier	31.94 Å
回转半径 Rg (电子) rg_electron	31.03 Å
零角强度 I(0) i0	164719000.00
分子量 molecular_weight	101570.0 kDa
排除体积 excluded_volume	126650 Å³
包络体积 envelope_volume	156480 Å³
水化壳体积 shell_volume	41698 Å³
包络直径 envelope_diameter	98.9 Å
壳层 Rg shell_rg	38.34 Å
包络 Rg envelope_rg	30.98 Å
形状 Rg shape_rg	31.03 Å
总 Rg total_rg	31.63 Å
总原子数 total_atoms	7161
残基数 n_residues	912
球谐函数阶数 n_harmonics	20
q 范围 q_range	— – 0.5000 Å⁻¹
数据点数 n_points	101
壳层类型 shell_type	directional
溶剂电子密度 solvent_density	0.3340 e/Å³
壳层衬度 contrast_shell	0.0300 e/Å³
CRYSOL 版本 crysol_version	4.1.3

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3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax	99.0 Å
Rg (实空间) rg_real	31.83 Å
Rg 误差 (实空间) rg_real_error	0.52 Å
I(0) (实空间) i0_real	1.6470e+08
I(0) 误差 (实空间) i0_real_error	2.3890e+06
Rg (倒空间) rg_reciprocal	31.88 Å
I(0) (倒空间) i0_reciprocal	164700000.0000
解质量估计 total_estimate	0.9111
解质量评级 solution_quality	EXCELLENT a EXCELLENT solution
P(r) 峰数 n_peaks	1
主峰位置 r_peak_primary	37.6 Å
偏度 Skewness skewness	0.194
峰度 Kurtosis kurtosis	-0.613
角度范围 angular_range	— – 0.2500 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	22840000.0000
实空间数据点数 n_real_points	51
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.960; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.961

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4. 晶体学与实验 4. Crystallography & Experiment

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5. 实体与聚合体信息 (3)

Entity 1 polymer

描述 description	BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE
分子量 formula_weight	34131.6 kDa
EC 编号 ec_number	2.6.1.42
来源方法 src_method	man
拷贝数 entity_count	3

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B,C
原子数 atom_count	7661

MTTKKADYIWFNGEMVRWEDAKVHVMSHALHYGTSVFEGIRCYDSHKGPVVFRHREHMQRLHDSAKIYRFPVSQSIDELMEACRDVIRKNNLTSAYIRPLIFVGDVGMGVNPPAGYSTDVIIAAFPWGAYLGAEALEQGIDAMVSSWNRAAPNTIPTAAKAGGNYLSSLLVGSEARRHGYQEGIALDVNGYISEGAGENLFEVKDGVLFTPPFTSSALPGITRDAIIKLAKELGIEVREQVLSRESLYLADEVFMSGTAAEITPVRSVDGIQVGEGRCGPVTKRIQQAFFGLFTGETEDKWGWLDQVNQ

来源 Source

来源生物 organism	Escherichia coli
NCBI 分类编号 ncbi_taxonomy_id	562
宿主生物 host_organism	Escherichia coli

Entity 2 non-polymer

描述 description	N-({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methyl)-L-glutamic acid
分子量 formula_weight	378.3 kDa
来源方法 src_method	syn
拷贝数 entity_count	3

Entity 3 water

描述 description	water
分子量 formula_weight	18.0 kDa
来源方法 src_method	nat
拷贝数 entity_count	500

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6. 折叠分类 (SCOP + CATH) 9 domains

SCOP 2.08 (3 domains)

结构域编号 domain_id	d1iyea_
类 Class class	e — Multi-domain proteins (alpha and beta)
折叠类型 Fold fold	e.17 — D-aminoacid aminotransferase-like PLP-dependent enzymes
超家族 Superfamily superfamily	e.17.1 — D-aminoacid aminotransferase-like PLP-dependent enzymes
家族 Family family	e.17.1.1 — D-aminoacid aminotransferase-like PLP-dependent enzymes

结构域编号 domain_id	d1iyeb_
类 Class class	e — Multi-domain proteins (alpha and beta)
折叠类型 Fold fold	e.17 — D-aminoacid aminotransferase-like PLP-dependent enzymes
超家族 Superfamily superfamily	e.17.1 — D-aminoacid aminotransferase-like PLP-dependent enzymes
家族 Family family	e.17.1.1 — D-aminoacid aminotransferase-like PLP-dependent enzymes

结构域编号 domain_id	d1iyec_
类 Class class	e — Multi-domain proteins (alpha and beta)
折叠类型 Fold fold	e.17 — D-aminoacid aminotransferase-like PLP-dependent enzymes
超家族 Superfamily superfamily	e.17.1 — D-aminoacid aminotransferase-like PLP-dependent enzymes
家族 Family family	e.17.1.1 — D-aminoacid aminotransferase-like PLP-dependent enzymes

CATH v4.4 (6 domains)

结构域编号 domain_id	1iyeA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Aminotransferase class 4, branched-chain amino acid transferase, N-terminal domain

结构域编号 domain_id	1iyeA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	10 — D-amino Acid Aminotransferase; Chain A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — D-amino Acid Aminotransferase, subunit A, domain 2

结构域编号 domain_id	1iyeB01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Aminotransferase class 4, branched-chain amino acid transferase, N-terminal domain

结构域编号 domain_id	1iyeB02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	10 — D-amino Acid Aminotransferase; Chain A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — D-amino Acid Aminotransferase, subunit A, domain 2

结构域编号 domain_id	1iyeC01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Aminotransferase class 4, branched-chain amino acid transferase, N-terminal domain

结构域编号 domain_id	1iyeC02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	10 — D-amino Acid Aminotransferase; Chain A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — D-amino Acid Aminotransferase, subunit A, domain 2

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7. 引用文献 (1)

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晶胞边长 a length_a	154.600 Å
晶胞边长 b length_b	98.860 Å
晶胞边长 c length_c	138.790 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	90.00 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	24

空间群 space_group	C 2 2 21
空间群编号 int_tables_number	20
晶系 crystal_system	—

分辨率 resolution	1.820 Å
最低分辨率 resolution_low	10.000 Å
R 因子 r_factor	—
R_work r_work	0.2090
R_free r_free	0.2390

fit	/app/data/saxs_computation/iy/1iye/1iye.fit
pddf	/app/data/pr_computation/iy/1iye/1iye.pr.out
profile	/app/data/saxs_computation/iy/1iye/1iye.dat

CRYSTAL STRUCTURE OF ESCHELICHIA COLI BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution

1. 结构基本信息 1. Structure Basics

2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

4. 晶体学与实验 4. Crystallography & Experiment

晶胞参数 Unit Cell

对称性 Symmetry

精修参数 Refinement

衍射实验 Diffraction